Tennessee → North Carolina · Interstate 40 / Interstate 65
Before turning the key for Charlotte, North Carolina, on the homeward run from Nashville, Tennessee, do a quick inventory sweep of onboard equipment: proposal binder, undelivered promotional items, and visitor badge should each go into a separate compartment so nothing slides into the footwell during a sharp brake. Interstate 40 / Interstate 65 accepts the 644 km (400 miles) of the return in roughly 6h 8m. Pulling out of Nashville (the capital of Tennessee and the country music capital of the world), the road eventually puts the driver back in front of the urban skyline of Charlotte (the Queen City of the Carolinas and the second-largest US banking center). Refueling sits near $53.82 for the same 58.5 liters (15.5 gallons) at the EIA national average benchmark. Return reimbursement, calculated against $0.43/km, returns $276.92 into the driver's wallet. Snap the closing odometer with the phone camera and attach it directly to the Clara receipt — internal controls accept photographic evidence without a supplementary spreadsheet.